eequa



(No Model.) 3 Sheets-Sheet 1'.

E.B.REQUA.

LAMP.

No. 334,546. I Patented Jan. 19,1886.

(No Model.) 3 Sheets-Sheet 2.

E, B. REQUA.

LAMP. No. 334,546. b PatentedJan. 19,1886.

u PEIERS. Pholv-Lithognphun Wahinginn. a. c.

- 3 Sheets-Sheet 3.

' (No Model.)

E.'B.REQUA.

LAMP.

Patented Jan. 19, 1886.-

lllll/E/VTOR WITNESSES N PETERS, Plvuin-Lilhognpher. Wishinghm. D. C.

UNITED STATES PATENT EEicE.

ELIAS B. REQUA, or JEEsEY our, NEW JERSEY.

LAMP.

fiPECIFICATION forming part of Letters Patent No. 334,546, dated January 19, 1886.

Application filed May 28, 1885. Serial No. 166,911. (No model.)

To all whom it may concern.-

Be it known that I, ELIAS B. REQUA, a citizen of the United States, and a resident of Jersey Oity,in the countyof Hudson and State of NewJersey, have invented certain new and useful Improvements in Lamps, of which the following is a specification.

The invention relates to improvements in lamps, and particularly to the class of lamps employed for lighting cars, steamercabins, 8:0.

It consists of a novel construction and arrangement of elements combining to produce an attractive lamp, and one in which the drafts are so regulated as to insure a strong, brilliant, regular flame.

The particular construction of the lamp and its distinctive characteristics will appear in the detailed description hereinafter presented,

reference being had to the accompanying drawings, in which- Figure l is a front view of a lamp embodying the elements. of the invention. Fig. 2 is a side elevation of same. Fig. 3 is a central vertical section of the oil-fount, supportingrim, chimney, and globe. Fig. 4 is a vertical section in the line 0 d of Fig. 8. Fig. 5 is a central vertical section of the smoke dome and cap. Fig. 6 is a detached transverse sectional view on the line 9 h of Fig. 3. Fig. 7 is a detached sectional view of a portion of the globe, reflector, and connecting-rim; and Figs. 8 and 9 are detached views, hereinafter referred to.

In the drawings A denotes a frame supporting the lamp, said frame consisting of side bars, B O, and forked bars D, which are secured at their bend by suitable elbows to the upper ends of the bars B G, the extremities of the bars D being preferably suitably orna mented and enlarged to provide a convenient means whereby the frame and lamp may be secured to the ceiling of the car or other support. The arrangement of the bars D is more clearly illustrated in Fig. 2. Their purpose is to afford an attractive and firm means for securing the lamp, and at the same time to serve as guides for the ceiling-protector E, which is located over the lamp and provided with brackets F, having sleeves G, encompassing and adapted to have a vertical movement on the bars D, and provided with setscrews H, whereby said brackets and protector E may be adjusted at will to and secured in the desired position. The protectorE consists of a metallic rim, I, supporting the porcelain or other plate, J, substantially as indicated in Figs. 1 and 2. The protector E is of marked advantage, since it eflectually prevents the ceiling of the car from being stained or charred, and avoids the necessity of cutting the usual hole through the ceiling above the lamp. The plate J, when secured in the rim 1, is adj ustable at will and presents an unbroken surface to the action of the heat arising from the lamp.

Between the lower ends of the bars B O is secured the annular supporting-rim K, which is perforated, as indicated at L, and has at its upper edge the flange M, serving as a support for the globe N, the lower edge of the rim K being provided with the inwardly-projecting flange O, as indicated in Figs. 3, 4, and 6. Upon opposite sides of the rim K the flange O is removed, forming spaces P, as indicated in Figs. 3 and 6, the purpose of the spaces P being to admit the projections Q, when the oil-fount is being inserted in position within the rim K.

The oil-fount R is of usual construction in its lower parts, being a shell or casing of sheet metal adapted to contain the proper quantity of oil. Its sides taper upward and inward, as indicated in Figs. 3 and 4, and its base is provided with an annular horizontal flange, S, which,when the fount is inserted into the rim M, as indicated in Fig. 3, comes in contact with flange O and serves as a stop. Upon opposite sides of the fount R are secured the proj eotions Q,which in outline resemble a cone, and the lower edges of which are but slightly separated from the flange S. The width of the projections Q about equals that of the spaces 1?, cut in the flange O, and when the oil-fount is being inserted in position in the rim K the projections Q are broughtopposite to the spaces P, and the fount then moved vertically upward within the said rim until the flange S on the fount impinges upon the flange 0, formed on the lower edge of the rim, at which time the springs T, hereinafter described, will opcrate against the projections Qto give the oilfount a slight rotary movement, bringing the lower edge of the projections over the flange O and away from the spaces 1?, whereby the fount will be locked in position and can only be removed by reverse pressure being applied to the same, in order to bring the projections Q again over the spaces P, at which time the fount may be directly withdrawn from the rim K. Upon the inner walls of the rim K,and in suitable relation to the projections Q, are arranged upon the rods V springs T, below which are secured, one on each side of ritn,the slides X, which in the present instance consist of a strip of bent metal inclosed at one side in a loop, Y, its other side inclining upward and toward the center of the rim K, its upper extremity being in rear of the end of the spring T, and in suitable relation to the projections Q to impinge the same when the oil- I'ount is in position, as indicated in Fig. 3. Vhen the oil-fount is inserted upward into the rim K, as hereinbctore described, the projections (,1 will move against the inwardly-inclined sides of the slide X, forcing the said slides and springs T out of their normal position, thereby creating a tension in the spring T, which, bearing against the upper extremity of the slide, operates to impart the slight rotary movement to said fount hereinbefore referred to when said t'ount has reached its upward position in the rim K. The low er edge of the projections Q is provided with the stop Z,which projects slightly below the flange O, and prevents the springs T from forcing the oil-fount too far upon its rotary movement by striking the edge of the flange at the end of the spaces P. The stop Z also prevents the oil-fount from being turned too far to the right when the attendant desires to withdraw the same.

In the upper central portion of the oil-fount is provided the usual opening, 1', surrounded by the vertical flange j, in which are cut on opposite sides the angular slots is, and upon the outer face of which is secured the spring Z, the free end of which contains the aperture m, and terminates over the inner end of the angular slot k. The upper edge of the flange j is re-enforced by the narrow strip of metal n, having upon opposite sides the corrugations 0, which form spaces over the entrance to the slots k, through which the pins 1) may be inserted, as hereinafter described, preparatory to locking the chimney, its supporting-frame, and wick-raising devices in position.

The wick-tube is indicated by the letter 8, and is supported by the plate t and frame a, the latter extending from the lower edge of the tube 8 upward to the lower edge of the plate t, and thence horizontally outward, forming the flange 10, which is slotted, as indicated at a: in Fig. i, the outer edges of the flange to being turned vertically upward and inclosing the foraminous plate 1 The lower portion of the frame it conforms in outline to the opening i in the oil-fount, and has secured upon its opposite sides pins 1),

which,when it is desired to arrange the parts of the lamp for use, are brought over the corrugations 0 in the re-enforce n, and moved vertically downward into the angular slots it, after which the frame it is given a partial r0 tary movement, so as to bring the pins 1) un der the springs Z, which, when the pins 1) have reached the proper point, will catch the same in the apertures m. \Vhen it is desired to remove the frame it and wick-tube from the oilfount, it will simply be necessary to raise the free end of the spring I, so as to release the pins 12, and then give the frame a reverse ro-' tary movement until the pins 1) have come below the corrugations 0, at which time the frame may be moved vertically upward and away from the oilfount without obstruction. The pins 1), together with the angular slots it, constitute what I have termed the bayonetjoint, which effectually retains the frame and wick-tube in position, and at the same time permits it to be withdrawn therefrom quickly, and obviates the necessity of employing the usual screw-thread now universally employed for this purpose.

The flamedome A is of usual outline, except at its lower portion,where it is provided with the series of apertures B, and is formed into the vertical flange G, projecting downward over the vertical portion of the flange w, and being rigidly secured in contact with the rim D, a portion of which projects above the adjacent portions of the flame-dome, and serves as a flange to retain the lower edge of the lamp-chimney in position, being provided with set-screw E, the inner end of which may be moved over the lower outwardly-projecting edge of the chimney after the latter has been placed in position. Upon one side of the rim D is secured the strip F, the lower end of which is bent horizontally inward, and upon the opposite side of the rim D is cut the vertical groove Gof sufficient width to pass over the screw H, which is secured at its inner end to the vertical portion of the flange t0, and also to permit the inner reduced end of the nut I to enter the circular upper end. The purpose of the bent strip F and screw H is to effectually secure the rim D with the flame-dome in position, in accomplishing which the bent end of the strip F is first moved under the flange w, and the opposite side of the rim D then moved downward over the screw H, after which the nut I is screwed against the said rim, thereby lockingit in position. The outer end of the screw H is provided with an enlargement or head, J, which serves to prevent the nut I from being entirely withdrawn from the screw or lost when the lamp is inuse and during the oper ation of loosening the nut for the purpose of permitting the rim D to be withdrawn from the flange 20. In the lamp described herein I elevate and lower the wick by means of the usual toothed wheels, L. secured upon a horizontal shaftand actuated through gear-wheels M and the vertical shaft N, which extends downward through the oil-fount, and is provided with ahead, as indicated in Fig. 3. The gearing M, for the purpose of raising and lowering the wick,is illustrated in a patent granted tome April 29, 1884, and is not sought to be claimed herein.

The globe N projects upward and outward in the form of the inverted cone, its upper edge being retained within the inner portion of the rim 0, which rim, as indicated in Fig. 7, is provided with the series of apertures I and is supported on opposite sides by brackets Q,carried by the sleeves R, which are adjustable vertically on the bars B O, and adapted to be securedin the desired position by setscrews S.

Above the row of apertures I the rim 0 is set outward, forming the shoulder T, upon which the reflector V is placed, as indicated in Fig. 7. The upper central portion of the reflector V is removed and the edge of the reflector surrounding the opening is turned up, forming a vertical flange, upon which is placed the smoke-dome \V', which, except as to its upper portion, is of the same construction and operation as the smoke-dome described in my Letters Patent issued on the 29th day of April, 1884, hereinbefore referred to.

The novel feature of the present smokedome W consists in the peculiar construction of its upper end and in that of the cap X, applied over the same. The upper end of the smoke-dome W has a central opening, Y, surrounded by the shoulders Z, one being on a lower plane than the other. The cap X is set over the upper end of the dome W and is closed, except at the apertures a. Within the cap X are provided the perforated cylinders 12, which are separated from each other and encircle the opening Y, and extend from the top of the cap downward to the shoulders Z, as indicated in Fig. 5. The heated air ascending the dome W passes through the opening Y, thence through the perforated cylinders b, escaping through the apertures a". The purpose of the cap X is to insure regularity in the escape of the heated air from the dome and to arrest the carbon or other matter arising from the flame.

Within the upper part of the oil-fount and encircling the opening therein is the dependent tube A, downward through which the usual wick is passed,and the purpose of which is to prevent the oil from beating up into the wick-tube and adjacent parts when the lamp is in use and the oil has become lowered in the fount. The tube A tends to facilitate the flame being kept regular, and prevents any escape of oil to the outer side of thelamp during the jarring of the car in which the lamp may be secured.

WVhen the lamp is in use, cool air will enter the apertures L in the rim K and pass upward between the rim and the tapered sides of the fount' B, above which the draft will divide, a portion of the air passing through the openings at and foraminous plate 1 to the flame-dome A, while the other part ascends along the inner walls of the globe N, at the upper end of which it will meet the currents of air entering through the apertures P, and I thence pass upward along the reflector V to the smoke-dome V. The air which enters the flamedome A passes upward through the lamp-chimney to the smoke-dome also, and there meeting the currents from under the reflector V ascends into the cap X and escapes through the apertures a. The movement of the currents of air through the lamp is such that the flame is held steady and the parts of the lamp are kept cool.

Referring to the screw II and slot G, (shown in Figs. 8 and 9,) it should be noted that the nut L on said screw does not bear forcibly on the flange D, but that its inner reduced end simply enters the enlarged upper end of the slot G, and thereby prevents the flange D from being elevated. According to this construction there is no strain on the screw H, and hence there is no probability that the screw will be loosened from its support.

I reserve the right to use such parts of the device hereinbefore' described as may beapplicable for the purpose to the burning of gas, and I give notice that I propose to file separate applications for Letters Patent on the tube lettered A and the means shown and described for securing the flange lettered D in position, and that I have filed an application embracing the devices hereinbefore described as the bayonetjoint, said application being numbered 17 0,694, and dated July 6, 1885.

lVhat I claim as my invention, and desire to secure by Letters Patent, is-

1. The perforated rim K, having upon its lower edge the flange O and spaces P, combined with the oil-fount having projections upon its sides adapted to enter said spaces, and springs for giving the oil-fount a slight rotary movement after the projections have passed through said spaces, substantially as and for the purpose set forth.

2. The oil-fount provided with projections Q and supporting the wick-tube, combined with rim K, having flange 0, spaces P, springs T, and slide X, substantially as set forth.

3. In a lamp, the oil-fount R and perforated supporting-rim K, combined with the globe N, the wick-tube, burner-base having flange w, flame-dome, rim D, and chimney, the flame-dome being provided with a row of apertures, 13, and the upper portion of the oil-fount being tapered inward from the supporting-rim K, substantially as set forth.

at. In a lamp, the frame a, provided with flange w, the flame-dome, and rim D, provided with slot G, enlarged at its upper end, combined with the strip F, the screw H, and nut l, substantially as set forth.

5. In combination with the burner, the smoke-dome surmounted by a cap, X, con

taining a perforated screen encircling the out- Signed at New York, in the county of New let from the dome, and apertures a beyond York and State of New York, this 25th day of the screen, substantially as set forth. May, A. D. 1885.

6. In combination with the fount and burn- 5 er, the globe N, the rim or frame 0, encir- ELIAS B. REQUA.

cling the upper edge of the globe and having a line of perforations beyond the globe, and a XVitnesses:

shoulder, T, beyond the perforations, and the CHAS. O. GILL,

reflector V, which lies upon said shoulder, EDUARD WOLFF. 10 substantially as set forth. 

